Parmesan Onion Ring Chips are a savory, crispy snack that combines the sweetness of baked onions with the salty crunch of toasted cheese. Ready in just 20 minutes, these chips are the perfect solution for anyone craving a low-carb alternative to traditional fried onion rings.
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Why You Will Love This Recipe
There are so many reasons to keep this recipe in your regular rotation. First, these Parmesan Onion Ring Chips are incredibly low carb, making them a fantastic snack or side dish for those watching their carbohydrate intake compared to potato chips. They are also naturally gluten-free, so they are safe for anyone on a restricted diet. Beyond the health benefits, they are extremely easy to make; if you can slice an onion and sprinkle cheese, you can master this recipe. Finally, the texture is unbeatable—the cheese caramelizes into a perfectly crispy shell around the tender onion.
Ingredients
- 12 ounces parmesan cheese, shredded (freshly grated from a block provides the best flavor)
- 1 medium white onion (large onions work best for traditional ring shapes)
- 1/2 teaspoon black pepper
- 1/2 teaspoon paprika
- 1/2 teaspoon garlic powder
- 1/2 tablespoon extra virgin olive oil or avocado oil cooking spray
Step-by-Step Instructions
- Prepare the Oven and Pan: Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper to ensure the cheese does not stick.
- Layer the Cheese: Sprinkle exactly half of the shredded parmesan cheese evenly across the parchment-lined sheet pan.
- Prepare the Onions: Slice your white onion into rounds that are approximately 1/4-inch thick. Place these onion slices in a single layer directly on top of the bed of parmesan cheese.
- Season: Evenly sprinkle the black pepper, paprika, and garlic powder over the onion slices. Lightly spray or brush each onion ring with a small amount of olive oil.
- Final Cheese Layer: Add the remaining half of the parmesan cheese over the top of the onions, ensuring each ring is well-covered.
- Bake: Place the pan in the oven and bake for 15 to 20 minutes. You are looking for the cheese to become golden brown and crispy.
- Cool and Cut: Remove from the oven and let them sit for a minute to firm up. Use a pizza cutter or knife to break the sheet into individual chips and serve immediately.

Expert Tips / Pro Tips
To get the most consistent results, always use parchment paper. While greasing a pan might seem sufficient, the cheese can still bond to the metal, whereas parchment paper allows the chips to lift off effortlessly. If you want to speed up your prep time, use a mandolin to slice the onions into perfectly even 1/4-inch rounds, but be sure to use a hand guard for safety. For the best flavor profile, grate your own parmesan from a block; pre-shredded cheeses often contain anti-caking agents that can affect how smoothly the cheese melts and crisps. Finally, using a pizza cutter to separate the chips once they have cooled slightly is the fastest way to get clean edges.
While white onions are standard, you can use yellow onions for a similar flavor or Vidalia onions if you prefer a much sweeter chip. If you want to experiment with the cheese, try mixing the top layer of parmesan with a little shredded mozzarella for a slightly chewier “cheese pull” effect, though it will be less crunchy. For those who enjoy heat, add a pinch of cayenne pepper or red pepper flakes to the seasoning mix. You can even apply this same method to other vegetables like zucchini slices or smashed broccoli florets for variety.
Serving Suggestions
These Parmesan Onion Ring Chips are delicious on their own, but they truly shine when paired with a dipping sauce. A sriracha aioli is highly recommended—simply mix 1/2 cup of mayonnaise with a tablespoon of sriracha and a squeeze of fresh lemon juice. They also pair beautifully with ranch dressing, marinara sauce, or even a balsamic glaze. Serve them as a party appetizer, a crunchy side for burgers, or as a keto-friendly snack during movie night.
To Store: Keep any leftover chips in an airtight container in the refrigerator for 2 to 3 days. Note that they may lose some crunch while refrigerated.
To Freeze: You can freeze these crispy chips for 2 to 3 months. Place them in a freezer-safe bag with layers of parchment paper between them to prevent sticking.
To Reheat: Avoid the microwave, as it will make the cheese rubbery. Instead, place the chips back on a sheet pan lined with parchment paper and bake at 350°F for 5 to 7 minutes until they regain their crispiness.
Nutrition Information
| Nutrient | Amount Per Serving |
|---|---|
| Calories | 242 kcal |
| Carbohydrates | 4 g |
| Protein | 21 g |
| Fat | 16 g |
| Saturated Fat | 9 g |
| Cholesterol | 39 mg |
| Sodium | 909 mg |
| Fiber | 0.4 g |
| Sugar | 1 g |

Parmesan Onion Ring Chips
Ingredients
Method
- Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper to ensure the cheese does not stick.
- Sprinkle exactly half of the shredded parmesan cheese evenly across the parchment-lined sheet pan.
- Slice your white onion into rounds that are approximately 1/4-inch thick and place these onion slices in a single layer directly on top of the bed of parmesan cheese.
- Evenly sprinkle the black pepper, paprika, and garlic powder over the onion slices, then lightly spray or brush each onion ring with a small amount of olive oil.
- Add the remaining half of the parmesan cheese over the top of the onions, ensuring each ring is well-covered.
- Place the pan in the oven and bake for 15 to 20 minutes until the cheese becomes golden brown and crispy.
- Remove from the oven, let them sit for a minute to firm up, then use a pizza cutter or knife to break the sheet into individual chips and serve immediately.
Notes
FAQ
What should I do if my parmesan chips aren’t crispy?
If your chips are still soft after 20 minutes, they likely need a bit more time. If they are golden but not crunchy, turn on the broiler for 1 to 2 minutes. Watch them very closely, as the cheese can go from perfectly crispy to burnt in a matter of seconds.
Can I use pre-grated parmesan cheese?
Yes, pre-grated cheese works for this recipe and is a great time-saver. However, for the absolute best melt and the most intense savory flavor, shredding a fresh block of parmesan is the preferred method.
What is the best type of onion to use?
A large white onion is the classic choice because it holds its shape well and provides that traditional onion ring flavor. Yellow onions are a great substitute, while red onions will provide a sharper, more pungent taste.